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CMR phenomenon

The CMR phenomenon is illustrated in fig. 29, which is taken from Hwang et al. (1995) for the system Lao.7-xPrj Cao.3Mn03 (note x = 0.7y of (Lai-yRjOojAojMnOs). The Curie temperatures 7c are marked by arrows. The magnetoresistance between 0 and 5 Tesla, defined here as (pot - P5t)/P5t, increases and 7c decreases, both dramatically, as x increases in the range 0 < x < 0.6 even though the variation in tolerance factor is small. Moreover,... [Pg.290]

The composition (Lai j,Pry)o.7Cao.3Mn03 represents a model system for understanding the CMR phenomenon and adjusting its parameters ]99]. The parent compounds LaMn03 and PrMn03 are A-type antiferromagnets, due to the... [Pg.277]

Another type of CMR phenomenon occurs where an antiferromagnetic-insulator CO phase competes with the conductive FM phase in the compo-... [Pg.78]

The CMR phenomenon, not indicated in fig. 43, occurs above 7c in the O phase it is laigest at X 0.12 where isolated FV O clusters in a paramagnetic O matrix grow to beyond per-... [Pg.317]

See other pages where CMR phenomenon is mentioned: [Pg.290]    [Pg.290]    [Pg.292]    [Pg.293]    [Pg.293]    [Pg.298]    [Pg.304]    [Pg.310]    [Pg.311]    [Pg.317]    [Pg.321]    [Pg.324]    [Pg.325]    [Pg.326]    [Pg.277]    [Pg.278]    [Pg.278]    [Pg.60]    [Pg.61]    [Pg.65]    [Pg.66]    [Pg.66]    [Pg.75]    [Pg.78]    [Pg.79]    [Pg.82]    [Pg.86]    [Pg.115]    [Pg.126]    [Pg.127]    [Pg.133]    [Pg.136]    [Pg.139]    [Pg.248]    [Pg.290]    [Pg.292]    [Pg.293]    [Pg.293]    [Pg.298]    [Pg.304]    [Pg.310]    [Pg.311]    [Pg.311]   
See also in sourсe #XX -- [ Pg.290 , Pg.317 , Pg.321 , Pg.324 , Pg.325 ]

See also in sourсe #XX -- [ Pg.290 , Pg.317 , Pg.321 , Pg.324 , Pg.325 ]



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CMRs

The Colossal Magnetoresistance (CMR) Phenomenon

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